1 While you can get a number of different options when ordering a 4-inch Skyjacker lift kit for a solid-axle Chevrolet truck, the best performance will come from replacing all four leaf springs. As this truck was in excellent condition, we got the best suspension package we could for this truck, ordering both front and rear replacement leaf springs. On top of that, we opted for M95 nitrogen-charged shocks and a dual steering stabilizer kit to finish off the package and soak up increased force coming from the larger 35-inch tires that we’re adding with this 4-inch suspension.